stat400lec34 - Or p-value &amp;amp;lt; Step 7: Conclusions...

Statistics 400 Tests about the Mean of a Population Tests of significance for the population mean μ are based on the sample mean, x , which has the distribution: ) , ( ~ n N x σ . The One Sample t-test: Random sample of size n. The hypothesis test has the same set-up as before. The only difference is that we are now using the estimated standard deviation and a t-distribution. The Seven-Step Method: Step 1: Identify the Null hypothesis Step 2: Identify the Alternative hypothesis One sided Tests Two sided Tests Step 3: Test Statistic based on the sampling distribution of x Ping Ma Lecture 34 Fall 2005 - 1 -

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